Collapsible food container
The present specification discloses a collapsible food container. The container includes a wall portion with an outer surface having a substantially smooth shape. The wall portion is configured to bend from raised position to a collapsed position, with the food container being used to retain food in the raised position and being collapsed for storage in the collapsed position.
1. A collapsible food container comprising:
a base portion configured to stand upon a support surface and defining a bottom of the collapsible food container; and
a wall portion having a lower end joined to the base portion and being movable between a first position and a second position in which the wall portion has a lesser height than in the first position,
the wall portion its the first position extending upward from the lower end of the wall portion to an upper end of the wall portion, and having an inner surface and an outer surface, the inner surface in the first position defining and facing towards an interior cavity for receiving food, the outer surface in the first position facing opposite the interior cavity and having a downward convex curvature,
the wall portion in the second position having a first portion and a second portion, the first portion in the second position having a first thickness and being adjacent to the base portion and extending upward and then downward to form an upward convex curvature portion having a maximum, and the second portion being, adjacent to the first portion and joined to the first portion at a transition and having a second thickness that is greater than the first thickness and in the second position extending downward and then upward to form a downward convex curvature portion having a minimum,
the wall portion in the second position not having a groove or a ridge in the outer surface from the maximum of the upward convex curvature portion to the minimum of the downward convex curvature portion, and
the transition forming a ridge in the inner surface of the wall portion when the wall portion is in the first position.
2. The collapsible food container of claim 1 , wherein the upper end of the wall portion has a greater diameter than the lower end of the wall portion when the wall portion is in the first position.
3. The collapsible food container of claim 1 , wherein the bottom of the collapsible food container extends in a plane, the outer surface of the wall portion passing through the plane when the wall portion is in the second position.
4. The collapsible food container of claim 1 , wherein the wall portion in the first position has a dome-like shape or a pyramidal shape.
5. The collapsible food container of claim 1 , wherein the wall portion is configured to bend between the first position and the second position.
6. The collapsible food container of claim 1 , wherein the base portion includes a stand configured to contact the support surface at a contact surface of the stand, the contact surface defining a plane, all parts of the wall portion being above the plane when the wall portion is in the second position.
7. The collapsible food container of claim 1 , wherein the first portion and the second portion each do not form a ridge or groove in the outer surface of the wall portion when the wall portion is in the first position.
8. The collapsible food container of claim 1 , further comprising a lid configured to be placed over the wall portion to form an air-tight seal of the interior cavity.
9. The collapsible food container of claim 1 , wherein the base portion and the wall portion are each made of silicone.
10. A colander comprising:
a base portion defining a bottom of the colander and having a plurality of holes; and
a wall portion having a lower end joined to the base portion and being movable between a first position and a second position in which the wall portion has a lesser height than in the first position,
the wall portion in the first position extending upward from the lower end of the wall portion to an upper end of the wall portion, and having an inner surface and an outer surface, the inner surface in the first position defining and facing towards an interior cavity for receiving food, the outer surface in the first position facing opposite the interior cavity and having a downward convex curvature,
the wall portion in the second position having a first position and a second portion, the first portion in the second position having a first thickness and being adjacent to the base portion and extending upward and then down and to form a upward convex curvature portion having a maximum, and the second portion being adjacent to the first portion and joined to the first portion at a transition and having a second thickness that is greater than the first thickness and in the second position extending downward and then upward to form a downward convex curvature portion having a minimum,
the wall portion in the second position not having a groove or a ridge in the outer surface from the maximum of the upward convex curvature portion to the minimum of the downward convex curvature portion, and
the transition forming a ridge in the inner surface of the wall portion when the wall portion is in the first position.
11. The colander of claim 10 , wherein the upper end of the wall portion has a greater diameter than the lower end of the wall portion when the wall portion is in the first position.
12. The colander of claim 10 , wherein the wall portion in the first position has a dome-like shape or a pyramidal shape.
13. The colander of claim 10 , wherein the wall portion is configured to bend between the first position and the second position.
14. The colander of claim 10 , wherein the first portion and the second portion each do not form a ridge or groove in the outer surface of the wall portion when the wall portion is in the first position.
15. The colander of claim 10 , wherein the base portion and the wall portion are each made of silicone.
16. A method of forming a collapsible food container comprising:
providing a mold;
filling the mold with silicone to form the collapsible food container including:
a base portion configured to stand upon a support surface and defining a bottom of the collapsible food container, and
a wall portion having a lower end joined to the base portion and being movable between a first position and a second position in which the wall portion has a lesser height than in the first position,
the wall portion in the first position extending upward from the lower end of the wall portion to an upper end of the wall portion, and having an inner surface and an outer surface, the inner surface in the first position defining and facing towards an interior cavity for receiving food, the outer surface in the first position facing opposite the interior cavity and having a downward convex curvature,
the wall portion in the second position having a first portion and a second portion, the first portion in the second position having a first thickness and being adjacent to the base portion and extending upward and then downward to form an upward convex curvature portion having a maximum, and the second portion being adjacent to the first portion and joined to the first portion at a transition and having a second thickness that is greater than the first thickness and in the second position extending downward and then upward to form a downward convex curvature portion having a minimum,
the wall portion in the second position not having a groove or a ridge in the outer surface from the maximum of the upward convex curvature portion to the minimum of the downward convex curvature portion, and
the transition forming a ridge in the inner surface of the wall portion when the wall portion is in the first position; and
removing the collapsible food container from the mold.
17. The method of claim 16 , wherein the upper end of the wall portion has a greater diameter than the lower end of the wall portion when the wall portion is in the first position.
18. The method of claim 16 , wherein the wall portion in the first position has a dome-like shape or a pyramidal shape.
19. The method of claim 16 , wherein the base portion includes a stand configured to contact the support surface at a contact surface of the stand, the contact surface defining a plane, all parts of the wall portion being above the plane when the wall portion is in the second position.
20. The method of claim 16 , wherein the first portion and the second portion each do not form a ridge or groove in the outer surface of the wall portion when the wall portion is in the first position.